We'll I guess? but in someones living room what the big deal when you have so many awesome sounds already in most TOTL/MOTL arrangers these days? That said I have no problem at all performing with whats I use and have a amazing sound when I'm performing......I really think this sound thing is so over-hyped.
And in addition a persons playing ability is the REAL bottom line to sounding good.....you could have what is perceived as the BEST sound set in the universe ....but it means squat if your talent & playing Technics aren't up to par....that's should be the priority. Not to mention that most of these units can be used to edit sounds into oblivion with some knowledge, & effort.
as it stands now IMO PC driven VST's haven't convinced me ..
but enjoy what you play.